Description
A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) responder. This could lead to a denial-of-service condition, causing the NSS responder to become unstable or terminate. This vulnerability affects the availability of the system responder.
Published: 2026-09-14
Score: 4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Wed, 16 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 15 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Description A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) responder. This could lead to a denial-of-service condition, causing the NSS responder to become unstable or terminate. This vulnerability affects the availability of the system responder.
Title Sssd: sssd: denial of service in nss responder via crafted zero-length requests
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-191
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Subscriptions

Redhat Enterprise Linux Openshift
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-22T14:47:36.211Z

Reserved: 2026-09-14T14:46:11.065Z

Link: CVE-2026-90996

cve-icon Vulnrichment

Updated: 2026-09-16T15:15:23.111Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-14T16:17:42.517

Modified: 2026-09-16T19:42:43.623

Link: CVE-2026-90996

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-14T14:50:00Z

Links: CVE-2026-90996 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T13:15:18Z

Weaknesses
  • CWE-191

    Integer Underflow (Wrap or Wraparound)